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→26pin SPI test
<ol style="list-style-type: lower-alpha;">
<li><p>'''--channel''': Specify the channel number of SPI</p></li>
<li><p>'''--port''': specify Specify the port number of SPI</p></li></ol>
</li>
<li><p>Do not short-circuit the mosi and miso pins of SPI1, the output result of running spidev_test.py is as follows, you can see that the data of TX and RX are inconsistent</p>